Mathieu Desnoyers <mathieu.desnoy...@efficios.com> writes: > From: Boqun Feng <boqun.f...@gmail.com> > > Wire up the rseq system call on powerpc. > > This provides an ABI improving the speed of a user-space getcpu > operation on powerpc by skipping the getcpu system call on the fast > path, as well as improving the speed of user-space operations on per-cpu > data compared to using load-reservation/store-conditional atomics. > > Signed-off-by: Boqun Feng <boqun.f...@gmail.com> > Signed-off-by: Mathieu Desnoyers <mathieu.desnoy...@efficios.com> > CC: Benjamin Herrenschmidt <b...@kernel.crashing.org> > CC: Paul Mackerras <pau...@samba.org> > CC: Michael Ellerman <m...@ellerman.id.au> > CC: Peter Zijlstra <pet...@infradead.org> > CC: "Paul E. McKenney" <paul...@linux.vnet.ibm.com> > CC: linuxppc-dev@lists.ozlabs.org > --- > arch/powerpc/include/asm/systbl.h | 1 + > arch/powerpc/include/asm/unistd.h | 2 +- > arch/powerpc/include/uapi/asm/unistd.h | 1 + > 3 files changed, 3 insertions(+), 1 deletion(-)
Looks fine to me. I don't have any other new syscalls in my next, so this should not conflict with anything for 4.18. Acked-by: Michael Ellerman <m...@ellerman.id.au> (powerpc) cheers
